Slitting and winding machine



March 4, 1941.

W. M. STOCKER sLIT'TING AND WINDING MACHINE 3 Sheets-Sheet 1 Filed June 25, 1940 BY l ATTORNEY.

March 4, 1941'. w, M, STOCKER 2,233,755

` l SLITTING AND WINDING MACHINE Filed June 25, 1940 s sheets-shet'z INVENTOR.

WML @.(Wq/ BY ATTORNEY.

March 4, 1941. w, M STOCKER 2,233,755

SLITTING AND WINDING MACHINE Filed June 25, 1940 3 Sheets-Sheet 5 INVENTOR.

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ATTORNEY.

Patented Mar. 4, 1941 UNITED STATES SLITTING AND WHNDING MACHINE Application June 2,5, 1940, serial No. 342,316

3 Claims.

'I'he present invention relates to slitting and winding machines of the type that employs two surface winding drums, and has for its main object and feature the provision of means to quickly adjust the machine to rotate the drums in either direction while maintaining the rotation of the slitter shaft in the same direction.

In the accompanying drawingsthe invention is disclosed in a concrete and preferred form in I which:

Fig. 1 is a view in side elevation of so much of a slitting and winding machine as is necessary to an understanding of the invention;

Fig. 2 is a diagrammatic View of a machine embodying shear-cut slitter elements;

Fig. 3 is a diagrammatic view of a machine embodying score-cut slitter elements;

Fig. 4 is a view of the parts shown in Fig.. 1 looking in the direction of'arrow X of Fig. 1 with the parts so adjusted as to drive the slitter shaft from the intermediate gears;

Fig. 5 is a view similar to Fig. 4, but showing the parts so adjusted as to drive the slitter shaft from one of the winding drums; and

Fig.- 6 is a detail sectional view substantially on the plane of line 6 8 of Fig. 1.

I and 2 indicate two surface winding drums by means of lwhich' slitted material 3 is wound upon a winding shaft (not shown) in awell-.understood manner. Said drums are, provided with gears 4 and 5 that mesh with an intermediate gear 8. Motion is imparted to the machine by a suitable means such as a motor or a pulley connected to one of the drums or to the intermediate 1 gear. In the present instance, a pulley 'I is shown mounted on shaft 8 of intermediate gear 6. It will be understood that rotation of pulley 'I can be effected in either direction and that as a consequence rotation of the windingdrums ca I be effected in either direction.

9 indicates a slitter shaft carrying a suitable slitter means such as backing roller I 0 with which cooperate score-cut slitters II (Fig. 3) or such shaft may carry shear-cut slitters I2 that cooperate with complementary shear-cut slitte I3 (Fig. 2). v f

W indicates a web of paper or other flexible material that is to be slitted and wound. In the exempliflcation of the invention shown in Fig. 3, the slitted sections pass directly from backing roller I0 over the front of winding drum 2, the direction of rotation of the various parts being in the direction of the arrows shown in solid lines. If, however, it is desired towind the sections with the other side out, then the direction of rotation of the drums is reversed, as shown by the arrows in dotted lines, and the slitted sections are led in between the drums and over the back of Winding drum 2. It will be noted that slitting means Iii and II rotate in the same direc- 5 tion in both instances. In the exempliication` of the invention shown in Fig. 2, exactly the same thing occurs, except that an idler roller III is interposed intermediate slitting means I2 and I3 and winding drum 2 because the web must pass l0 straight between the slitting means and cannot be trained around shear-cut slitter I2.

'I'he means for driving slitter shaft 9 always in the same direction regardless of the direction of rotation of the drums are as follows: I5 indi- 15 cates an additional gear on winding drum 2, and I6 and I1 denote two gears, slidable on slitter shaft 9. Gear It is adapted in one position (Fig.

4) to mesh with intermediate gear 6, at which time gear Il is out of mesh with additional gear I5 on drum 2. When rotation of the winding drums is reversed (Fig. 5), gear I is brought out of mesh with intermediate gear t, and gear Il is |brought into mesh with additional gear I5 on drum 2.

Preferably, gears I6 and Il are moved simultaneously, and this can be accomplished by any suitable means'. In the present instance, gears I6 and il are carried by a'sleeve I slidable on slitter shaft Il and rotating with shaft by means of key or feather I9. A bifurcated member 20 engages a groove 2i in said sleeve and is carried by slidableshaft 22 having rack 23. A pinion 241, rotatable by handwheel 25, engages said rack whereby gears i6 and Il cank be shifted 35 in the manner previously described. To render it unnecessary to gage the sliding movement of shaft 22, suitable automatic latching means are employed which, in the present instance, take the form of a spring-pressed ball 25 carried by 4o bearing 2l in which shaft 22 slides, and said shaft 22 is provided with recesses as 2i? into which bal] 2t snaps when shaft 22 has been moved the correct distance.

able With the slitter shaft but slidable thereon.

one of said two gears loengl placed in mesh with the intermediate gear when the drums are to be rotated in one direction and out of mesh with said intermediate gear when the drums are to.

winding drums provided with .gears that mesh with an intermediate gear, said gears and said intermediate gear being reversibly rotatable, means to rotate .the slitter shaft always in the same direction regardless of the direction of rotation of the drums including: an additional gear on one of the drums, and two gears rotatable with the slitter shaft but slidable thereon, one of said two gears being placed in mesh with the intermediate gear when the drumsv are to be rotated in one direction and out of mesh with said intermediate 'gear when the drums are to be r0- tated in the other direction, and the other of said two gears being placed in mesh with the additional gear on one ofthe drums when said drums are to be rotated in said other direction and out of mesh with said additional gear when the drums are to be rotated in the first-mentioned direction, 'and means to simultaneously shift the two gears on the slitter shaft.

3. 1n a slitting and winding Imachine having a rotatable slitter shaft, and having two surface winding drums provided with gears that mesh 

